This study aims to quantify the phenolic compounds and compounds Lavonia Patapsco. Analysis of anti-oxidation in various ways, including DPPH, FRAP and ᵦ-carotene extracted from the samples I canna four colors: red, yellow, orange, pink and yellow. In a solvent, ethanol. The test for phenolic compounds. Found that red canna flower extract at a concentration of 1000 micrograms per milliliter of wavelength 765 nm, the amount of phenolic compounds, most of which is equal to 18.5% (Yields phenolic) compounds tested for Lavonia Patapsco. Found that red canna flower extract at a concentration of 50 micrograms per milliliter of wavelength 510 nm, the amount of compounds Lavonia Patapsco most as well. The value of 22.6% (Yields flavonoid) when analyzing the effects of antioxidant with DPPH found that extracts Canna flowers pink 60 minutes a concentration of 10 micrograms per milliliter of wavelength 517 nm, the concentration of the active substance against reaction. Oxidation most valuable IC20 equal to 269.2 micrograms per milliliter. The anti-oxidation by FRAP analysis showed that canna flower. Red at a concentration of 20 micrograms per milliliter of wavelength 595 nm has anti-oxidative best value of 36.52 (μmol Fe (II) / mg) to analyze anti-oxidation method ᵦ-carotene showed that canna flower. Red and pink 20-minute concentration of 100 micrograms per milliliter of wavelength 470 nm has anti-oxidative best value% Antioxidant activity was 99.89%.
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